# CVE-2018-6227: Cross-site scripting in Trend Micro Email Encryption Gateway

> Attackers can inject malicious scripts into Trend Micro Email Encryption Gateway, potentially compromising user sessions or data.

- **Severity:** Medium 5.4 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 15 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-39fc-g8xv-h8h2

## What is CVE-2018-6227?

CVE-2018-6227 is a medium-severity cross-site scripting vulnerability in Trend Micro Email Encryption Gateway, published on 15 Mar 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A stored cross-site scripting (XSS) vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to inject client-side scripts into vulnerable systems.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2018-6227?

It affects 1 product.


Products: Trendmicro Email Encryption Gateway.

## How do I fix CVE-2018-6227?

No fix has been published for CVE-2018-6227 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-6227 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-6227 exists.

Public exploit code:

- Trend Micro Email Encryption Gateway 5.5 (Build 1111.00) - Multiple Vulnerabilities (exploitdb)

## Other vulnerabilities in Trend Micro Email Encryption Gateway

- [CVE-2018-6220](https://insights.sbomify.com/CVE-2018-6220/): File upload in Trend Micro Email Encryption Gateway (critical 9.8)
- [CVE-2018-6223](https://insights.sbomify.com/CVE-2018-6223/): Missing authorization in Trend Micro Email Encryption Gateway (critical 9.8)
- [CVE-2018-6228](https://insights.sbomify.com/CVE-2018-6228/): SQL injection in Trend Micro Email Encryption Gateway (critical 9.8)
- [CVE-2018-6229](https://insights.sbomify.com/CVE-2018-6229/): SQL injection in Trend Micro Email Encryption Gateway (critical 9.8)
- [CVE-2016-4351](https://insights.sbomify.com/CVE-2016-4351/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-6227 and fix it if it is affected.

What it is: CVE-2018-6227 is a medium-severity cross-site scripting vulnerability in Trend Micro Email Encryption Gateway, published on 15 Mar 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-6227 exists.

Affected product: Trend Micro Email Encryption Gateway. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2018-6227/ (Markdown: https://insights.sbomify.com/CVE-2018-6227/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-6227
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-6227
- OSV: https://osv.dev/vulnerability/CVE-2018-6227

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-6227/
Summaries are generated and may contain mistakes; the official description above is the record.